Question about 2002 Toyota Prius

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Please call Stan at 415-606-5777 cell. THE PRIUS runs normally but has a red warning light and with the car symbol, with codes p3000 and p3009 and fuel consumption of @ 30 mpg. I cleaned the battery terminals. All the cells test 16 volt equally. But some cells had up to 50 volts between the high voltage battery and the negative frame. After the first try, reconnecting the 12 volt battery, the car ran normally for @ 10 miles. then the check engine light came back and the codes came back. 2nd and 3rd try disconnecting the 12 volt battery and the HV disconnect to reboot the computer. With the key on, the red warning light with the car ! came on after 2 minutes, without the car running. Question 1 - this occurred when there was really wet weather. could there be leaky capacitors? Question 2 - could the battery computer be leaking to ground? because of the 50 volts on some cells between frame and battery cell Question 3 - how can I test the battery computer? Question 4 - how can I do a load test on main battery?

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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: Prius series 1 (1998) warning sign

You will need to have this light reset with a scan tool, it is stored in a non-volatile (stays in memory with or without battery voltage) memory. Have the dealer check the cause, better than a tow bill.

Posted on Sep 02, 2008

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jturcotte
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SOURCE: I have a 2002 Toyota Tacoma with 65,000 and check

It has a purpose, but the problem isn't always a big deal.

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Posted on Sep 22, 2010

cansmo
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SOURCE: Hi, I have a

May have a fusable link that burnt open.You replace the computer.HV control. you may have to flash that unit.When it is a mismatch unit they will not communicate together. Think of this as you computer when you add hardware you need software.

Posted on Apr 21, 2011

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